Rotary water-meter.



' No. 673,062. Patented A pr.;30, I90I.

H. REISEBT.

ROTARY WATER METER. (Application filed m 2, 1900.)

(No Ilodel.) 2 Shutr-Shoot l.

UNITED I STATES PATENT ()FFICE.

HANS REISERT, OF COLOGNE, GERMANY.

ROTARY WATER-M ETER.

SPECIFICATION forming part of Letters Patent No. 673,062, dated April30, 1901.

Application filed May 2,1900. Serial No. 15,212. (No mOdeL).

in Rotary Water-Meters, of which the following is a specification.

My invention relates to a continually-rotating water-meter, and hasespecially in view to provide means for preventing an underfilling ofthe compartments and to insure that each compartment is filled exactlyto a certain point before it begins to empty.

My invention is represented in the accompanying drawings, in which-Figure l is a vertical section of the apparatus. Fig. 2 is a scheme ofthe position of the apparatus at the moment when one compartmentisperfectly filled. Fig. 3 is a scheme of the same at the moment when thiscompartment begins to empty.

The invention relates to that class of watermeters in which abucket-wheel is employed,

which is caused to rotate by the gravity ofthe water. The buckets areformed by several plates a, fixed between two disks 5, one of which isshown in the drawings, which disks are turnable around the axialinlet-pipe 0, so that a drum is formed which can rotate around the axialinlet-pipe c. The plates at are curved from the periphery of the disks btoward the axle c and are situated in such way that they do not toucheach other. The space left between them near the periphery is very smalland serves as outlet for each respective compartment. These outlets arearranged in such way that the water of each compartment does not yetflow out when the supply to this compartment is stoppedthat is to say,when the compartment is filledso that after the compartment is perfectlyfilled the drum must rotate farther before the compartment begins toempty.

In Fig. 2 the compartment is shown perfectly filled, while in Fig. 3 theposition is shown in which it begins to empty. During the time the drumrotates from the position shown in Fig. 2 to that shown in Fig. 3 thatpart 70, Fig. 2, near the periphery lying between the level of the waterand the outlet fills with water. Now this quantity of water used forfilling this room is smaller than the quantity of water contained in theroom Z, Fig. 3, lying between the level of the water of the compartmentnear the axle at the moment when the compartment is filled and the levelof the same when the compartment begins to empty, whereby it is attainedthat during the time the drum rotates from the position shown in Fig. 2to that shown in Fig. 3 a certain quantity of water must flow from thiscompartment into the following one, so that each compartment is at firstoverfilled, and then the surplus water flows into the next compartmentbefore the first compartment begins to empty. Only by this overfillingof the compartments the exactitude of my wa- 'ter-meter is attained.

The water enters the apparatus through the inlet-pipec, which isprovided with a slot d, situated at an angle of substantially forty-fivedegrees to the vertical diameter. This, as well as the fact that theoutlet of each compartmentis situated in such way that the compartmentcan only begin to empty after the supply thereto has stopped some timebefore and that the cubic content of that part of the small space leftbetween the plates near the periphery lying between the level ofthewater in the moment when the supply to the compartment is stopped andthe outlet is smaller than the cubic content of that part of thecompartment near the axle lying between the level of the water in themoment when the supply to the compartment is stopped and the level ofthe water at the moment when the compartment begins to empty, forms theobject of my invention.

What I claim as my invention, and desire to secure by Letters Patent ofthe United States of America, is

A continuously-rotating water-meter in the form of a drum provided withan inlet-pipe at its center, and consisting of several plates fixedbetween two disks turnable around said inlet-pipe, said plates beingcurved from the periphery toward the axle, so as to leave only a smallspace between them near the periphery, the arrangement being such thatthe eubical contents of that part of the same small space lying betweenthe level of the water at the moment when the supply to the compartmentis stopped, and the peripheral outlet is smaller than the cubicalcontent of that part name to this specification in the presence of ofthe compartment lying between the level two subscribing witnesses.

of the water at the moment when the supply to the compartment isstopped, and the level HANS REISERT' 5 of the water at the moment whenthe com- Witnesses:

partment begins to empty. F. E. MALLETT,

In testimony whereof I have signed my KARL SCHMITT.

